feat(design): adopt CIBG component patterns (header, forms, wizards, dashboard)

Re-skins the app's layout on top of the CIBG Huisstijl theme (previous commit) so it
matches designsystem.cibg.nl, not just its colour tokens — magenta ("robijn") header,
horizontal nav, and the CIBG component markup for forms/wizards/dashboard.

- Header: logo block + robijn titlebar (breadcrumb + user menu) + grey horizontal nav
  (4 links) replacing the dashboard side-nav; breadcrumb restyled for the titlebar
  (no background of its own — CIBG's global `header nav` rule otherwise bleeds a grey
  fill into it, fixed by scoping an override inside BreadcrumbComponent).
- Forms: form-field/radio-group/checkbox rebuilt on CIBG's horizontal `form-group row`
  / `form-check.styled` markup (label col-md-4, control col-md-8); same input() APIs.
- Wizards: stepper rebuilt as the CIBG "stappenindicator" (numbered circles, visited
  steps clickable for back-nav, title merged in); wizard-shell adopts the CIBG
  procesnavigatie button row. Back-navigation wired into all three wizard machines
  (registratie-wizard already had it; added `GaNaarStap` to intake/herregistratie
  machines, pure + spec'd).
- New shared/ui molecules: confirmation (animated bevestiging checkmark, replaces
  plain alerts on submit), review-section (controlestap sections with "Wijzigen"),
  application-list/application-link (CIBG "aanvragen" rows, replace the dashboard's
  card grid and aanvraag-block).
- Cleanup: delete side-nav and now-unused styles.scss utilities (.app-overview,
  .app-form-panel, .app-card-grid); correct design-tokens.mdx (it referenced tokens
  that no longer exist) and document the CIBG-value token bridge.

Verified: build/lint/check:tokens green, 178 tests pass (4 new GaNaarStap cases), and
manually driven end-to-end (dashboard, a full herregistratie submission through to the
confirmation screen, mobile width, keyboard focus).

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

src/app/shared/ui/application-list/application-list.component.ts

@@ -0,0 +1,17 @@
+import { Component } from '@angular/core';
+
+/** Molecule: wraps `<app-application-link>` rows in the CIBG Huisstijl "aanvragen"
+    dashboard block (`.dashboard-block.applications`) — see
+    designsystem.cibg.nl/componenten/aanvragen. Used for both the "Mijn aanvragen"
+    list and the "Wat wilt u doen?" action list on the dashboard. */
+@Component({
+  selector: 'app-application-list',
+  template: `
+    <div class="dashboard-block applications">
+      <ul class="list-unstyled">
+        <ng-content />
+      </ul>
+    </div>
+  `,
+})
+export class ApplicationListComponent {}

src/app/shared/ui/application-list/application-list.stories.ts

@@ -0,0 +1,26 @@
+import type { Meta, StoryObj } from '@storybook/angular';
+import { applicationConfig, moduleMetadata } from '@storybook/angular';
+import { provideRouter } from '@angular/router';
+import { ApplicationListComponent } from './application-list.component';
+import { ApplicationLinkComponent } from '@shared/ui/application-link/application-link.component';
+
+const meta: Meta<ApplicationListComponent> = {
+  title: 'Molecules/Application List',
+  component: ApplicationListComponent,
+  decorators: [
+    applicationConfig({ providers: [provideRouter([])] }),
+    moduleMetadata({ imports: [ApplicationLinkComponent] }),
+  ],
+  render: () => ({
+    template: `
+      <app-application-list>
+        <app-application-link heading="Inschrijving" status="Stap 2 van 3" cta="Verder gaan" clickable="true" />
+        <app-application-link heading="Herregistratie" status="Referentie 2024-00123 · ingediend op 12 mei 2024" />
+        <app-application-link heading="Inschrijven" subtitle="Schrijf u in in het BIG-register." to="/registreren" />
+      </app-application-list>`,
+  }),
+};
+export default meta;
+type Story = StoryObj<ApplicationListComponent>;
+
+export const Default: Story = {};